Analog input - non linear scaling

[rbresca]

Good morning,

is there a way to implement a non-linear scaling with the analog input object?

Something like that:

_calib := 6.143;

ScaledValue := EXPT(10, (Loc120B836.Unit.OutImm.PhysicalValue -_calib)/1.286);

I can scale the value by myself, but I would like to see the scaled value in the DefaultView graph (which, by the way, should be logarithmic!)

[nexidator · Accepted solution]

You can copy DefaultView, hide the original and display the copy instead. That way you can manipulate the view the way you want. The Mod_Chart does support logarithmic scaling of the Y axis.

BTW: It is not necessary to create an array of length 1 for the Y value. The object does that for compatibility reasons but current HMI versions are able to use a simple variable as well.